Knob escutcheon



FIG. 1 is a perspective view of a knob escutcheon showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view taken from the right of FIG. 1;

FIG. 4 is a rear view thereof;

FIG. 5 is a top plan view thereof; and

FIG. 6 is a bottom view thereof.

The ornamental design for a knob escutcheon, substantially as shown anddescribed.